Results 111 to 120 of about 3,773,384 (268)
Impact of Anisotropic Cosmic-Ray Transport on the Gamma-Ray Signatures in the Galactic Center
The Astrophysical JournalThe very high energy (VHE) emission of the central molecular zone (CMZ) is rarely modeled in 3D. Most approaches describe the morphology in 1D or simplify the diffusion to the isotropic case.
J. Dörner +5 more
doaj +1 more source
Consistency between the luminosity function of resolved millisecond pulsars and the galactic center excess [PDF]
, 2017 Fermi Large Area Telescope data reveal an excess of GeV gamma rays from the direction of the Galactic Center and bulge. Several explanations have been proposed for this excess including an unresolved population of millisecond pulsars (MSPs) and self ...
H. Ploeg +3 more
semanticscholar +1 more source
Probing the Galactic Diffuse Continuum Emission with COSI
The Astrophysical Journal, 2023 In 2016, the Compton Spectrometer and Imager (COSI) had a successful 46 day flight on board NASA’s Super Pressure Balloon platform. In this work, we report measurements of the Galactic diffuse continuum emission (GDCE) observed toward the inner Galaxy ...
Christopher M. Karwin +12 more
doaj +1 more source
FERMI-LAT OBSERVATIONS OF HIGH-ENERGY γ-RAY EMISSION TOWARD THE GALACTIC CENTER [PDF]
, 2015 The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy γ-rays.
M. Ajello +122 more
semanticscholar +1 more source
SOFIA/FORCAST Galactic Center Source Catalog
The Astrophysical JournalThe central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies; consequently, the inner ∼400 pc have been the target of numerous large surveys at all accessible wavelengths.
Angela S. Cotera +15 more
doaj +1 more source
Evidence of a Cloud–Cloud Collision from Overshooting Gas in the Galactic Center
The Astrophysical Journal, 2023 The Milky Way is a barred spiral galaxy with bar lanes that bring gas toward the Galactic center. Gas flowing along these bar lanes often overshoots, and instead of accreting onto the Central Molecular Zone (CMZ), it collides with the bar lane on the ...
Savannah R. Gramze +6 more
doaj +1 more source
The Galactic Center Molecular Cloud Survey. II. A Lack of Dense Gas & Cloud Evolution along Galactic Center Orbits [PDF]
, 2016 We present the first systematic study of the density structure of clouds found in a complete sample covering all major molecular clouds in the Central Molecular Zone (CMZ; inner $\sim{}200~\rm{}pc$) of the Milky Way.
J. Kauffmann +17 more
semanticscholar +1 more source
The Astrophysical JournalThe Milky Way’s Central Molecular Zone (CMZ) is the largest concentration of dense molecular gas in the Galaxy, the structure of which is shaped by the complex interplay between Galactic-scale dynamics and extreme physical conditions.
Daniel L. Walker +17 more
doaj +1 more source
Improved Cosmic-Ray Injection Models and the Galactic Center Gamma-Ray Excess [PDF]
, 2016 Fermi-LAT observations of the Galactic Center (GC) have revealed a spherically- symmetric excess of GeV gamma rays extending to at least 10 deg from the dynamical center of the Galaxy.
E. Carlson, T. Linden, S. Profumo
semanticscholar +1 more source
RELATIVISTIC SIGNATURES AT THE GALACTIC CENTER [PDF]
Dark Matter in Astrophysics and Particle Physics, 2009 Studies of the inner few parsecs at the Galactic Centre provide evidence of a supermassive black hole, associated with the unusual, variable radio and infrared source Sgr A*. Our major aim is the study and analysis of the physical processes responsible for the variable emission from the compact radio source Sgr A*.
openaire +3 more sources